Which statement about Earth’s core helps explain Earth’s magnetic field? Earth’s core is composed of magnets. Earth’s core is composed of iron and nickel. The outer core is solid. The inner core is liquid and moving.

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.